MSD Sycamore Creek Drainage Basin Wastewater Treatment Plant, Indian Hill, Ohio

MSD Sycamore Creek Drainage Basin is a municipal wastewater treatment plant located in Indian Hill, Ohio, within the Metropolitan Sewer District of Greater Cincinnati. The facility serves a population of around 25,223, classifying it as a medium-sized agglomeration under U.S. regulatory frameworks. As a plant operating under the U.S. Clean Water Act, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Ohio Environmental Protection Agency. These permits set effluent limits to protect water quality, and plants of this scale typically employ secondary treatment or better to meet standards. The plant discharges into the Sycamore Creek drainage basin, which flows into the Little Miami River, a National Scenic River. The Little Miami River ultimately joins the Ohio River, a major tributary of the Mississippi River. The watershed supports diverse aquatic life and is an important recreational resource for the region.

The plant discharges into Sycamore Creek, part of the Little Miami River watershed. The Little Miami River is a National Scenic River known for its high water quality and biodiversity, supporting species like smallmouth bass and freshwater mussels. The river flows into the Ohio River, which drains to the Mississippi River and the Gulf of Mexico. The plant's operations are critical to maintaining the ecological health of this sensitive stream system.